Let's say you are the addressee, and the sender sent you a disclamer note 5 days ago. And the sender wrote:
If you are not the intended recipient(s) (or authorised by an addressee who received this message), access to this e-mail, or any disclosure or copying of its contents, or any action taken (or not taken) in reliance on it is unauthorised and may be unlawful.
When I googled it, the synonyms for reliance are dependency, depend, etc, BUT it doesn't suit the context. Could you shed some light please?